I am a two-digit number
Which prime factor will surely appear among my first factors?
We have hundreds of course questions with personalized recommendations + Account 100% premium
I am a two-digit number
Which prime factor will surely appear among my first factors?
To solve this problem, follow these steps:
Therefore, the solution to the problem is that the prime factor is .
Write all the factors of the following number: \( 6 \)
Actually, both 2 and 5 are always factors of numbers ending in 0! Since any two-digit number ending in 0 is divisible by 10, and , both primes must appear.
These primes might appear in some two-digit numbers ending in 0, but they're not guaranteed. For example, 20 doesn't contain 3, 7, or 11 as factors, but it does contain 2 and 5.
Start with the guaranteed factors 2 and 5, then check if the tens digit contributes additional prime factors. For example: 30 = 2 × 3 × 5, so it has prime factors 2, 3, and 5.
Yes! Any number ending in 0 (whether 2-digit, 3-digit, or larger) is divisible by 10, so it will always contain prime factors 2 and 5.
Then you'd look for primes that don't always divide numbers ending in 0. Primes like 3, 7, and 11 might not appear in every case, making them possible answers for that type of question.
Get unlimited access to all 18 Division - Advanced questions, detailed video solutions, and personalized progress tracking.
Unlimited Video Solutions
Step-by-step explanations for every problem
Progress Analytics
Track your mastery across all topics
Ad-Free Learning
Focus on math without distractions
No credit card required • Cancel anytime