1, 3, 7, 21
1, 3, 13, 39
The common factors of 6, 21, and 39 are 1 and 3
The positive integer factors of 273 are:1, 3, 7, 13, 21, 39, 91, 2731,3 7,13,21,39,91,273
-21 - - 39 = -21 + 39 = 39 - 21 = (+)18 . For double mathematical signs think = + = - = - = + If no sign is shown , read it as plus(+). For
1 and 3, the GCF.
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42 The factors of 273 are: 1, 3, 7, 13, 21, 39, 91, 273
Oh, dude, that's an easy one. So, what can go into 21 and 39? Well, technically, the numbers that can go into both 21 and 39 are 1 and 3. Like, it's not rocket science, but hey, math can be a little sneaky sometimes.
The factors of 39 are: 1, 3, 13, 39 The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42 The factors of 72 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42The factors of 273 are: 1, 3, 7, 13, 21, 39, 91, 273The common factors are: 1, 3, 7, 21
the factors of 39 are:1,39,3,13
The greatest common factor of 21 and 39 is 3
Factors of 39 are 1, 3, 13, 39. Whereas the prime factors of 39 are 3, 13, 39.
It is 37 which is a prime number because it has only two factors