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Expressing each number as the product of prime numbers can help in taking out common factor.
Prime factorization of 90 = 2x3x3x5 = 21x32x51
Prime factorization of 216 = 2x2x2x3x3x3 = 23x33
It is clear that 2x3x3 or 21x32 is common in P.F. of both numbers.
So, the highest common factor is 2x3x3 = 18.
Wiki User
∙ 13y ago
Wiki User
∙ 7y ago90 = 2 x 3 x 3x 5 while 216 = 2 x 2 x 2 x 3 x 3 x 3
The factors common to both numbers are 2 x 3 x 3 = 18
So the HCF is 18
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What is the greatest common factor of 90 and 216?
The greatest common factor of 90 and 216 is 18 90 = 2 * 32 * 5 216 = 23 * 33 greatest common factor = 2 * 32 = 2 * 9 = 18 90 / 18 = 5 216 / 18 = 12 because the greatest common factor of these is 1.
What is the highest common factor of 90?
obviously, its highest common factor is the number itself. so the answer here is 90.
What is the greatest common factor of 90 108 and 216?
It is: 18
What is the highest common factor of 90 and 450?
90
Highest common factor of 90 and 66?
6
What is the highest common factor of 90 and 60?
30
What is The highest common factor of 80 and 90?
10
What is the highest common factor of 90 and 108?
9
What is the highest common factor of 27 and 90?
The Greatest Common Factor (GCF) is: 9
What is the greatest common factor between 95 and 90?
95 and 90's highest common factor is five.
What is the highest common factor of 6 and 90?
hcf(6, 90) = 6.
Highest common factor of 75 and 90?
That would be 15. Only a number ending in five would be a factor of 75. 45 is not. 35 is not. 25 is not. 15 is, and it also is a factor of 90. This makes it the highest common factor of 75 and 90, although it is not a prime factor.
