Free Practice Question
PS · Problem Solving
sub-505
Divisibility/Multiples/Factors
What is the count of prime numbers between 1 and 100 that are factors of 210?
Answer Choices
Correct answer marked belowA
One
B
Two
C
Three
Four
Correct
E
Five
See the full step-by-step explanation
You can see the correct answer above. Sign in for free to unlock the complete worked solution.
Track your performance and improve
Get detailed analytics, unlock full explanations, and move up difficulty tiers as you practice.
Explanation
Preview
Official Explanation
Official
To determine how many prime numbers between 1 and 100 are factors of 210, we perform prime factorization. The factorization of…
Read the full explanation
Sign in for free to see the complete step-by-step solution to this question.
Comments
2
Sign in to join the discussion
J
JohnApr 11, 2025
Great explanation
A
ArshvirFeb 6, 2025
thanks for the answer
What this question tests
What it tests
Your understanding of divisibility rules, least common multiples, and greatest common factors.
Common trap
Forgetting that 1 is not prime and that every integer divides 0.
Details
Difficulty
sub-505
Type
PS
Category