The proper factor of 21 is 1, 3 and 7
No, 294 is not a proper factor of 147. Proper factors are smaller than the number of which they are a factor. The proper factors of 147 are 3, 7, 21, 49, and perhaps 1, depending on the definition you are using.
The factors of 21 are 1, 3, 7, and 21
Prime numbers don't have proper factors.
The proper factors of 220 are 2,4,5,10,11,20,22,44,55,110
The proper factors of 16 are 1,2,4, and 8 :)
The factors of 21 are: 1, 3, 7, 21.
1, 3, 7 and 21
3 and 7
3 and 7
The proper factors of 147 are 3, 7, 21, and 49
2, 3, 6, 7, 14, 21
The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42.The proper factors are 1, 2, 3, 6, 7, 14, and 21or 2, 3, 6, 7, 14, and 21 if the number 1 is excluded as it is in some definitions of proper factor.
The proper factors of a number are all the factors less than itself, so the proper factors of 126 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, and 63. In some cases, the number 1 is excluded from the list of proper factors, too.
No, 294 is not a proper factor of 147. Proper factors are smaller than the number of which they are a factor. The proper factors of 147 are 3, 7, 21, 49, and perhaps 1, depending on the definition you are using.
2, 3, 6, 7, 14, 21
1, 2, 3, 6, 7, 14, 21, 42.
The factors of 21 are: 1,3,7, and 21.