diff --git a/src/ArduinoJson/Numbers/FloatParts.hpp b/src/ArduinoJson/Numbers/FloatParts.hpp
index b9291ce1..214bc7a8 100644
--- a/src/ArduinoJson/Numbers/FloatParts.hpp
+++ b/src/ArduinoJson/Numbers/FloatParts.hpp
@@ -73,7 +73,7 @@ struct FloatParts {
 
     if (value > 0 && value <= ARDUINOJSON_NEGATIVE_EXPONENTIATION_THRESHOLD) {
       for (; index >= 0; index--) {
-        if (value < traits::negativeBinaryPowersOfTenPlusOne()[index]) {
+        if (value < traits::negativeBinaryPowersOfTen()[index] * 10) {
           value *= traits::positiveBinaryPowersOfTen()[index];
           powersOf10 = int16_t(powersOf10 - bit);
         }
diff --git a/src/ArduinoJson/Numbers/FloatTraits.hpp b/src/ArduinoJson/Numbers/FloatTraits.hpp
index 6e1cd1bb..23abd7ff 100644
--- a/src/ArduinoJson/Numbers/FloatTraits.hpp
+++ b/src/ArduinoJson/Numbers/FloatTraits.hpp
@@ -63,23 +63,6 @@ struct FloatTraits<T, 8 /*64bits*/> {
     return pgm_ptr<T>(reinterpret_cast<const T*>(factors));
   }
 
-  static pgm_ptr<T> negativeBinaryPowersOfTenPlusOne() {
-    ARDUINOJSON_DEFINE_PROGMEM_ARRAY(  //
-        uint64_t, factors,
-        {
-            0x3FF0000000000000,  // 1e0
-            0x3FB999999999999A,  // 1e-1
-            0x3F50624DD2F1A9FC,  // 1e-3
-            0x3E7AD7F29ABCAF48,  // 1e-7
-            0x3CD203AF9EE75616,  // 1e-15
-            0x398039D665896880,  // 1e-31
-            0x32DA53FC9631D10D,  // 1e-63
-            0x2591544581B7DEC2,  // 1e-127
-            0x0AFE07B27DD78B14   // 1e-255
-        });
-    return pgm_ptr<T>(reinterpret_cast<const T*>(factors));
-  }
-
   static T nan() {
     return forge(0x7ff8000000000000);
   }
@@ -156,19 +139,6 @@ struct FloatTraits<T, 4 /*32bits*/> {
     return pgm_ptr<T>(reinterpret_cast<const T*>(factors));
   }
 
-  static pgm_ptr<T> negativeBinaryPowersOfTenPlusOne() {
-    ARDUINOJSON_DEFINE_PROGMEM_ARRAY(uint32_t, factors,
-                                     {
-                                         0x3f800000,  // 1e0f
-                                         0x3dcccccd,  // 1e-1f
-                                         0x3a83126f,  // 1e-3f
-                                         0x33d6bf95,  // 1e-7f
-                                         0x26901d7d,  // 1e-15f
-                                         0x0c01ceb3   // 1e-31f
-                                     });
-    return pgm_ptr<T>(reinterpret_cast<const T*>(factors));
-  }
-
   static T forge(uint32_t bits) {
     return alias_cast<T>(bits);
   }