The factors of 40 are 1,2,4,5,8,10,20 and 40. For them to be common, they need to be compared to another set of factors.
Chat with our AI personalities
Since 40 is a factor of 120, all of its factors are common.
The common factors of 30 and 40 are 1, 2, 5, 10
40 and 21 have no common prime factors
all the factors of 40 are 1, 2, 4, 5, 8, 10, 20, 40
The factors of 32 are 1, 2, 4, 8, 16 and 32. The factors of 40 are 1, 2, 4, 5, 8, 10, 20 and 40. The common factors are 1, 2, 4 and 8. The Higest Common Factor (HCF) is 8.