For 40: 2 and 5
For 70: 2, 5 and 7
The common factors of 40 and 70 are 1, 2, 5, 10. 2 and 5 are prime.
2 and 5
The prime factors of 18 are 2, 3, and 3. The prime factors of 70 are 2, 5, and 7. The prime factors that 18 and 70 have in common are a single 2.
Three:The Prime Factors of 70 are 2, 5, 7.
The prime factors of 25 are 5x5. The prime factors of 40 are 2x2x2x5.
The prime factors of 40 are 2 and 5
The distinct prime factors of 70 are 2, 5, and 7, so it has three distinct prime factors.
The prime numbers (factors) of 70 are: 2,5,7
The prime numbers (factors) of 70 are: 2,5,7
The factors of 70 are: 1, 2, 5, 7, 10, 14, 35, 70 The prime factors are: 2 x 5 x 7
The prime numbers (factors) of 70 are: 2,5,7
1, 2, 4, 5, 8, 10, 20 and 40 are the prime factors of 40