0
The factor tree finds the prime factorizations The prime factorizations find the GCF and LCM.
Example 30 and 42:
30
15,2
5,3,2
42
21,2
7,3,2
2 x 3 x 5 = 30
2 x 3 x 7 = 42
Select the common factors.
2 x 3 = 6, the GCF
Combine the factors, eliminating duplicates.
2 x 3 x 5 x 7 = 210, the LCM
Check it.
30 x 42 = 1260
210 x 6 = 1260
It checks.
Still curious? Ask our experts.
Chat with our AI personalities
Judy
Devin
LaoAdd your answer:
Earn +20 pts
If b is a factor of a find HCF of a and b?
b
Find HCF of 260 and 560?
HCF is the highest common factor of two or more numbers. HCf of 260 and 560 is 20.
What is the HCF of 1296 and 960?
The Highest Common Factor (HCF) of 1296 and 960 is the largest positive integer that divides both numbers without leaving a remainder. To find the HCF, we can use the Euclidean algorithm, which involves dividing the larger number by the smaller number and then using the remainder as the new divisor in the next iteration. By repeating this process, we find that the HCF of 1296 and 960 is 48.
What is the highest common factor of 210 and 147?
The highest common factor (HCF) of 210 and 147 is the largest positive integer that divides both numbers without leaving a remainder. To find the HCF, you can use the Euclidean algorithm, which involves dividing the larger number by the smaller number and then using the remainder as the new divisor in the next iteration. Continuing this process, you find that the HCF of 210 and 147 is 21.
What is the HCF of 336 and 384?
The Highest Common Factor (HCF) of 336 and 384 is the largest number that divides both 336 and 384 without leaving a remainder. To find the HCF, you can use the Euclidean algorithm, which involves dividing the larger number by the smaller number, then using the remainder as the divisor in the next iteration. Continuing this process will eventually lead to a remainder of 0, at which point the divisor will be the HCF. In this case, the HCF of 336 and 384 is 48.
