Find HCF : (i) 170,405
Answers
Answer: 5
Step-by-step explanation:
Approach 1. Integer numbers prime factorization:
Prime Factorization of a number: finding the prime numbers that multiply together to make that number.
170 = 2 × 5 × 17;
170 is not a prime, is a composite number;
405 = 34 × 5;
405 is not a prime, is a composite number;
* Positive integers that are only dividing by themselves and 1 are called prime numbers. A prime number has only two factors: 1 and itself.
* A composite number is a positive integer that has at least one factor (divisor) other than 1 and itself.
Calculate the greatest (highest) common factor (divisor), gcf, hcf, gcd:
Multiply all the common prime factors, by the lowest exponents (if any).
gcf, hcf, gcd (170; 405) = 5
gcf, hcf, gcd (170; 405) = 5;
The numbers have common prime factors.
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Answer:
:HCF is 5
Step-by-step explanation:
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