The prime factors of 144 are 2, 2, 2, 2, 3 and 3 The prime factors of 300 are 2, 2, 3, 5 and 5 So the only prime numbers which are common to both numbers are 2, 2 and 3 = 12
The prime factors of 18 are 2, 3 and 3. The prime factors of 42 are 2, 3 and 7. Thus, the prime factors which are common to both are 2 and 3. However, the usual manner of answering this sort of question is to give the greatest common factor which is common to both (or all) numbers, and not only prime factors - so as 2 and 3 are common to both numbers and as 2 x 3 = 6 the 'other' answer to the question is 6.
List the numbers: 216, 360 Divide both numbers by 2, since they are both divisible by 2: 108, 180 Divide both numbers by 2 again, since they are both divisible by 2: 54, 90 Divide both numbers by 2 yet again, since they are both divisible by 2: 27, 45 Divide both numbers by 3, since they are both divisible by 3: 9, 15 Divide both numbers by 3 again, since they are both divisible by 3: 3, 5 Since 3 and 5 do not have any common factors greater than 1, we can now multiply all the numbers we divided by: 2 x 2 x 2 x 3 x 3 = 8 x 9 = 72 GCF(216, 360)=72
The squares of all prime numbers above 2 have exactly 3 factors.
The factors of 225 are 1, 3, 5, 9, 15, 25, 45, 75, and 225. The factors of 144 are 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, and 144. Factors are numbers that can be multiplied together to give the original number, and both 225 and 144 have multiple factors due to their composite nature.
The prime factors of 60 are 2, 2, 3, and 5.The prime factors of 105 are 3, 5, and 7.The prime numbers that are factors of both 60 and 105 are 3 and 5.
The prime factors of 162 are 2 and 3. The prime factorization of 162 is 2 x 3⁴.
Multiples of 6.
The prime factors of 144 are 2, 2, 2, 2, 3 and 3 The prime factors of 300 are 2, 2, 3, 5 and 5 So the only prime numbers which are common to both numbers are 2, 2 and 3 = 12
1, 2, 3 & 6
30 and 60
The prime factors of 18 are 2, 3 and 3. The prime factors of 42 are 2, 3 and 7. Thus, the prime factors which are common to both are 2 and 3. However, the usual manner of answering this sort of question is to give the greatest common factor which is common to both (or all) numbers, and not only prime factors - so as 2 and 3 are common to both numbers and as 2 x 3 = 6 the 'other' answer to the question is 6.
The factors of 225 are 1, 3, 5, 9, 15, 25, 45, 75, and 225. The factors of 144 are 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, and 144. Factors are numbers that can be multiplied together to give the original number, and both 225 and 144 have multiple factors due to their composite nature.
The common prime factors of 18 and 36 are 2 and 3. Both numbers can be divided evenly by 2 and 3.
Common factors of both numbers are: 1, 2, 3 and 6
42, 48 are the two numbers bigger than 40 that have 2 and 3 as their only prime factors.
Factors are the numbers you multiply together. For example, in the equation 2 times 3 equals 6, the 2 and the 3 are both factors of 6.